ONKYO HT-S3305 B. Audio output channels: 5.1, RMS rated power: 270, 850 W. Satellite speakers RMS power: 120 W, Satellite speaker frequency range: 80 - 20000 Hz, Satellite speaker impedance: 6 Ом. Center speaker RMS power: 120 W, Center speaker frequency range: 80 - 20000 Hz, Center speaker impedance: 6 Ом. Subwoofer type: Active, Subwoofer RMS power: 130 W, Subwoofer frequency range: 27 - 150 Hz. Front speaker dimensions (WxDxH): 101 x 161 x 111 mm, Front speaker weight: 800 g, Center speaker dimensions (WxDxH): 231 x 113 x 101 mm This is an auto-generated long summary based on the first three features of the first five feature groups.